So I'm playing a more energy-efficient style of tennis (Old-Man style-ish) now that the tennis season is over. It means that I stay very close to the baseline when rallying and having a short takeback for most of my shots. It also means that I hit relatively flat or with underspin with most my shots. I'm having trouble with absorbing power with my backhand slice though, especially with loopy topspin balls. Is slicing back a loopy ball more tricky than just blocking it back? Because I can't seem to time the stroke right and the ball never goes where I want it to. Also, does anyone have any more tips to playing old-man tennis?